syncrope/gopher-lua-54-semantics

Task gallery / DeepSWE (long-horizon SWE) / Version 1

Reference solution (oracle): Unverified
No-op resistance check: Unverified
QA verdict: Not recorded
Aggregate eligibility: Excluded / other version

The task

gopher-lua is a pure-Go Lua 5.1 VM; its only number type is LNumber (float64). Add an opt-in Lua 5.4 numeric-semantics mode. The specification is the Lua 5.4 Reference Manual ([source link]) — operative sections §2.1, §2.4, §3.1, §3.3.5, §3.4, §6.1, §6.4.2, §6.7, §8.1. Public surface: lua.Options gains Lua54Numbers bool. True: the state follows 5.4 numeric semantics in everything it parses, compile…

Excerpt only; not a complete executable task specification. Task ID task_f23a5f1298c94cb9 · version 1. Selection status: not fully recorded.

Results by model and effort

This exact task version only. Every rate is passes / valid runs with a Wilson 95% interval; n≤2 remains counts only. Macro aggregation does not apply within a single task. Baselines are summarized in the quality gates, not ranked. A passed no-op resistance check means that doing nothing did not solve the task.

Current evidence

Model / effort	Verifier result [95% Wilson]	Diagnostic labels / valid	HARNESS_ERROR · excluded	Outcome classes
Claude Opus 5 · default (unverified)	0/5 · 0.0% [0.0%, 43.4%]	5 / 5	0	GOOD_FAILURE: 5 BAD_FAILURE: 0 GOOD_SUCCESS: 0 BAD_SUCCESS: 0
GPT-5.6-sol · default (unverified)	0/5 · 0.0% [0.0%, 43.4%]	5 / 5	0	GOOD_FAILURE: 5 BAD_FAILURE: 0 GOOD_SUCCESS: 0 BAD_SUCCESS: 0

Legacy evidence

Model / effort	Verifier result [95% Wilson]	Diagnostic labels / valid	HARNESS_ERROR · excluded	Outcome classes
Claude Opus 4.8 · default (unverified)	0/5 · 0.0% [0.0%, 43.4%]	5 / 5	0	GOOD_FAILURE: 5 BAD_FAILURE: 0 GOOD_SUCCESS: 0 BAD_SUCCESS: 0
Gemini Flash (latest alias) · default (unverified)	0/0	0 / 0	0	GOOD_FAILURE: 0 BAD_FAILURE: 0 GOOD_SUCCESS: 0 BAD_SUCCESS: 0

Difficulty, with uncertainty

Selected-best difficulty: 100.0% [56.6%, 100.0%]. This is one minus the best measured current-row pass rate among rows with at least five valid runs.

The maximum is selected from the observed rows, so the estimate is optimistic. Its Wilson interval is not adjusted for model selection. “Hard” requires qualifying GOOD_FAILURE evidence; the threshold flag additionally requires the interval and recorded quality gates to meet the documented rule. This is not independent validation. Threshold flag: no.

Every recorded run

20 recorded trials, including controls. Diagnostic labels do not replace verifier reward. Labels and quality checks are source declarations, not independently attested here. Internal evidence remains private; a missing public URL is shown explicitly. Records with invalid or absent rewards are not scored.

Run / model	Date / source	Reward / eligibility	Diagnostic class / source	Resources	Evidence
`trial_6a8e734cd5ee4072` Claude Opus 4.8 · default (unverified)	Aug 29, 2026 console	0 · valid	GOOD_FAILURE frozen-classifier	Tokens: 156,816 Turns: 145 Cost: $20.8971	Not publicly available
`trial_6e7a8bc0241b47c6` Claude Opus 4.8 · default (unverified)	Aug 29, 2026 console	0 · valid	GOOD_FAILURE frozen-classifier	Tokens: 192,852 Turns: 189 Cost: $24.9794	Not publicly available
`trial_a94119269daa4df6` Claude Opus 4.8 · default (unverified)	Aug 29, 2026 console	0 · valid	GOOD_FAILURE frozen-classifier	Tokens: 197,591 Turns: 174 Cost: $25.1480	Not publicly available
`trial_e5a4a56531664372` Claude Opus 4.8 · default (unverified)	Aug 29, 2026 console	0 · valid	GOOD_FAILURE frozen-classifier	Tokens: 188,139 Turns: 203 Cost: $30.8008	Not publicly available
`trial_ec1d8b92b4654883` Claude Opus 4.8 · default (unverified)	Aug 29, 2026 console	0 · valid	GOOD_FAILURE frozen-classifier	Tokens: 184,900 Turns: 174 Cost: $25.8764	Not publicly available
`trial_595e9f48b7a74ce0` Claude Opus 5 · default (unverified)	Sep 1, 2026 console	0 · valid	GOOD_FAILURE frozen-classifier	Tokens: 182,345 Turns: 120 Cost: $18.4922	Not publicly available
`trial_8c19dc8241e045dd` Claude Opus 5 · default (unverified)	Sep 1, 2026 console	0 · valid	GOOD_FAILURE frozen-classifier	Tokens: 163,762 Turns: 132 Cost: $17.9701	Not publicly available
`trial_8c7ce55d27ef493c` Claude Opus 5 · default (unverified)	Sep 1, 2026 console	0 · valid	GOOD_FAILURE frozen-classifier	Tokens: 172,582 Turns: 121 Cost: $19.1334	Not publicly available
`trial_afbe045361ac4249` Claude Opus 5 · default (unverified)	Sep 1, 2026 console	0 · valid	GOOD_FAILURE frozen-classifier	Tokens: 195,621 Turns: 140 Cost: $22.2984	Not publicly available
`trial_b8af201e56714013` Claude Opus 5 · default (unverified)	Sep 1, 2026 console	0 · valid	GOOD_FAILURE frozen-classifier	Tokens: 174,771 Turns: 119 Cost: $19.0499	Not publicly available
`trial_26d01a5761464ea2` Gemini Flash (latest alias) · default (unverified)	Sep 1, 2026 console	0 · excludedsource_evidence_exclusion	No diagnostic label derived	Tokens: — Turns: — Cost: —	Not publicly available
`trial_6afbdbb3cce24cde` Gemini Flash (latest alias) · default (unverified)	Sep 1, 2026 console	0 · excludedsource_evidence_exclusion	No diagnostic label derived	Tokens: — Turns: — Cost: —	Not publicly available
`trial_d44ca93b17c74cef` Gemini Flash (latest alias) · default (unverified)	Sep 1, 2026 console	0 · excludedsource_evidence_exclusion	No diagnostic label derived	Tokens: — Turns: — Cost: —	Not publicly available
`trial_d7e17acd00ac4457` Gemini Flash (latest alias) · default (unverified)	Sep 1, 2026 console	0 · excludedsource_evidence_exclusion	No diagnostic label derived	Tokens: — Turns: — Cost: —	Not publicly available
`trial_ee49373363c04d70` Gemini Flash (latest alias) · default (unverified)	Sep 1, 2026 console	0 · excludedsource_evidence_exclusion	No diagnostic label derived	Tokens: — Turns: — Cost: —	Not publicly available
`trial_5c62381334644e99` GPT-5.6-sol · default (unverified)	Sep 1, 2026 console	0 · valid	GOOD_FAILURE frozen-classifier	Tokens: — Turns: — Cost: —	Not publicly available
`trial_7114cb68bea7429d` GPT-5.6-sol · default (unverified)	Sep 1, 2026 console	0 · valid	GOOD_FAILURE frozen-classifier	Tokens: — Turns: — Cost: —	Not publicly available
`trial_a6e4e2da9b5a4150` GPT-5.6-sol · default (unverified)	Sep 1, 2026 console	0 · valid	GOOD_FAILURE frozen-classifier	Tokens: — Turns: — Cost: —	Not publicly available
`trial_d0770a30905c4a3b` GPT-5.6-sol · default (unverified)	Sep 1, 2026 console	0 · valid	GOOD_FAILURE frozen-classifier	Tokens: — Turns: — Cost: —	Not publicly available
`trial_dd1b3df726954bb9` GPT-5.6-sol · default (unverified)	Sep 1, 2026 console	0 · valid	GOOD_FAILURE frozen-classifier	Tokens: — Turns: — Cost: —	Not publicly available